Re: [PATCH v1 14/19] read-cache: touch shared index files when used

[Duy Nguyen <pclouds@gmail.com>]

On Sun, Oct 23, 2016 at 4:26 PM, Christian Couder
<christian.couder@gmail.com> wrote:
> @@ -2268,6 +2268,12 @@ int write_locked_index(struct index_state *istate, struct lock_file *lock,

Doing this in read_index_from() would keep the shared file even more
"fresher" since read happens a lot more often than write. But I think
our main concern is not the temporary index files created by the user
scripts, but $GIT_DIR/index.lock (make sure we don't accidentally
delete its shared file before it gets renamed to $GIT_DIR/index). For
this case, I think refreshing in write_locked_index is enough.

>                 int ret = write_shared_index(istate, lock, flags);
>                 if (ret)
>                         return ret;
> +       } else {
> +               /* Signal that the shared index is used */
> +               const char *shared_index = git_path("sharedindex.%s",
> +                                                   sha1_to_hex(si->base_sha1));
> +               if (!check_and_freshen_file(shared_index, 1))
> +                       warning("could not freshen '%s'", shared_index);

_()
-- 
Duy